JP2005297151A - Wire harness removing device - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a wire harness removing device capable of applying a suspension load to a wire harness up to the final stage of removing the wire harness from a car body. <P>SOLUTION: This wire harness removing device 1 has a suspending part 8 suspended by a hoisting device, a first frame 9 and a second frame 10 having one end part rotatably installed in a lower end part of the suspending part 8, a first arm 11 and a second arm 12 respectively rotatably installed in the other end part of the first frame 9 and the second frame 10, freely opening-closing its tip part with a crossing part as a fulcrum and sandwiching the wire harness by the tip part, and harness gripping parts 14 and 15 arranged in the tip part of the second arm 12 and formed by superposing at least two layers or more of tip blades 13 for alternately forming a plurality of projection parts and recessed parts by dislocating a pitch of the projection parts in the laminating direction. <P>COPYRIGHT: (C)2006,JPO&NCIPI

Description

  The present invention relates to a wire harness removing device used for removing a wire harness from a vehicle body.

  For example, as a jig for removing a wire harness from a discarded vehicle (such as an automobile), an abbreviation having a hook part for hooking a hook provided on a crane and a bent part for hooking the wire harness Using a J-shaped jig (J-shaped hook), hooking the hook on the wire harness, and lifting the jig upward with a crane, the wire harness is removed from the vehicle (for example, patent document) 1 etc.).

  However, in this jig, since the wire harness is simply hooked on the hook portion, when one end of the wire harness is detached from the vehicle body, no lifting load is applied thereafter.

  Further, with this jig, when the wire harness is lifted, a side slip occurs at the hook portion, and the lifting load is not applied to the wire harness. That is, since the fixing force with respect to the vehicle body of a wire harness is not uniform, the position of a J-type hook will shift | deviate to the longitudinal direction of a wire harness in the middle of lifting. As a result, the J-shaped hook is shifted to the left or right, and the lifting load cannot be stably applied to the wire harness, and eventually the entire wire harness cannot be recovered.

Therefore, in order to prevent the J-shaped hook from slipping, a jig has been proposed in which the hook portion is bent at an acute angle to prevent the wire harness from slipping (see, for example, Patent Document 2). According to this jig, it is possible to prevent the skid from slipping because the wire harness can be firmly sandwiched between the hooks having an acute angle.
JP 2003-118663 A (2nd and 3rd pages, FIGS. 1 to 3) JP 2002-337630 A (pages 3 and 4 and FIG. 2)

  However, with this jig, it is possible to alleviate the side slip of the wire harness. However, when one end of the wire harness is detached from the vehicle body, the lifting load cannot be applied thereafter.

  Then, an object of this invention is to provide the wire harness removal apparatus which can apply a lifting load to a wire harness to the final stage which removes a wire harness from a vehicle body, without producing a side slip.

  The present invention is a wire harness removing device for removing a wire harness from the vehicle by grasping the wire harness arranged in the vehicle and lifting it by a hoisting device.

  The wire harness detaching device includes a hanging portion that is suspended from a hoisting device, a first frame and a second frame that are rotatably attached to a lower end portion of the hanging portion, and the first frame and the first frame. A first arm and a second arm that are pivotally attached to the other end portions of the two frames and that can be opened and closed with the intersecting portion as a fulcrum, and the wire harness is sandwiched between the distal ends, and at least the first arm Alternatively, there is provided a harness gripping portion that is provided at the tip of the second arm and is formed by stacking at least two layers of tip blades in which a plurality of convex portions and concave portions are alternately formed with the pitch of the convex portions being shifted in the stacking direction.

  According to the wire harness removing device of the present invention, the convex portions of the adjacent tip blades stacked in the harness gripping portion alternately bite the wire harness, so that the wire harness is effectively held and the lateral displacement during lifting is prevented. To prevent.

  In addition, according to the wire harness removing device of the present invention, the lifting load is applied to the wire harness even if one end of the wire harness is detached from the vehicle body because the wire harness is lifted while grasping at the distal ends of the first arm and the second arm. All wire harnesses can be removed from the car body.

  Hereinafter, specific embodiments to which the present invention is applied will be described in detail with reference to the drawings.

[Configuration of wire harness removal device]
FIG. 1 is a plan view showing a state in which the wire harness is removed from the vehicle by the wire harness removing device, FIG. 2 is a perspective view showing the wire harness routed on the instrument panel, and FIG. 3 is a closed first arm and second arm. FIG. 4 is a front view showing the wire harness removing apparatus when the first arm and the second arm are opened, and FIG. 5 is an enlarged main part showing the harness gripping part. FIG. 6 is an enlarged front view of the main part of the harness holding part when the wire harness is gripped, FIG. 7 is an enlarged perspective view of the main part of the harness holding part, and FIG. 8 is formed on each tip blade. FIG. 9 is a diagram schematically showing the arrangement state of the convex portions, and FIG. 9 is a diagram showing the relationship between the sizes of the convex portions and concave portions formed on the harness gripping portion and the wire rod size of the wire harness.

  As shown in FIGS. 1 and 2, the wire harness detaching apparatus 1 of the present embodiment grips the wire harness 4 routed inside the instrument panel 3 of the automobile (vehicle) 2, and moves upward by the hoisting device 5. It is an apparatus which removes the wire harness 4 from the inner side of this instrument panel 3 by being lifted up.

  The hoisting device 5 is slidably attached to, for example, a rail 6 provided on the ceiling, and can be moved to a work position where the wire harness 4 is removed. The hoisting device 5 is provided with a hook 7 for hanging a wire harness removing device 1 described later. The hoisting device 5 hangs the wire harness detaching device 1 by operating the drive motor by hooking the hook 7 into a hook insertion hole 8A formed in a suspending portion 8 described later of the wire harness detaching device 1. By doing so, the said wire harness removal apparatus 1 is pulled up upwards.

  As shown in FIGS. 3 and 4, the wire harness detaching apparatus 1 has a suspending portion 8 that is suspended from the hook 7 of the hoisting device 5, and a lower end portion of the suspending portion 8 that has one end pivotable. The attached first frame 9 and second frame 10, and the other ends of the first frame 9 and the second frame 10 are rotatably attached to each other, and the front end portion thereof can be opened and closed with a crossing point as a fulcrum. A first arm 11 and a second arm 12 that sandwich the harness 4 at the tip, and a harness gripping portion 14 that is provided at the tip of the first arm 11 and the second arm 12 and is formed by stacking a plurality of tip blades 13; 15.

  The wire harness detaching apparatus 1 is configured to rotatably connect a connecting portion between the lower end portion of the hanging portion 8 and the first frame 9 and the second frame 10 with a bolt 16 and a nut (not shown). The other ends of the first frame 9 and the second frame 10 and the first ends of the first arm 11 and the second arm 12 are rotatably connected by bolts 17 and 18 and nuts, respectively. A so-called pantograph type in which the intersecting portions of the arms 12 are also rotatably connected by bolts 19 and nuts to form a rhombus with these four connecting portions (portions where the bolts 16, 17, 18, 19 are provided) as fulcrums. It is structured.

  And in this wire harness removal apparatus 1, the part which makes the rhombus by the 1st flame | frame 9, the 2nd flame | frame 10, the 1st arm 11, and the 2nd arm 12 which makes the said 4 connection parts a vertex is arrow X in FIG. The harness gripping portions 14 and 15 provided at the distal ends of the first arm 11 and the second arm 12 with a force of several hundred kilograms for lifting the wire harness 4 in the vertical direction are shown in FIG. The wire harness 4 is gripped by the lateral force that is converted into a lateral force.

  In addition, the 1st arm 11 and the 2nd arm 12 are made into circular arc shape from an intersection part to the harness holding parts 14 and 15, and the harness holding parts 14 and 15 are made to associate with each other in a closed state.

  As shown in FIGS. 5 to 7, the harness gripping portions 14 and 15 are detachably attached to the distal ends of the first arm 11 and the second arm 12 by hexagon bolts 20 and 21 and nuts 22. The harness gripping portion 15 includes a tip blade 13 (13A, 13B) having a saw blade shape in which a plurality of convex portions 23 (23A, 23B, 23C, 23D) and concave portions 24 (24A, 24B, 24C, 24D) are alternately formed. , 13C, 13D) are stacked (four in the present embodiment), and these are fixed to the distal ends of the first arm 11 and the second arm 12 with the hexagon bolts 20, 21 and the nut 22, respectively. ing.

  As shown in FIGS. 7 and 8, the four tip blades 13A, 13B, 13C, and 13D stacked are adjacent tip blades 13A, 13B, 13C, and 13D, and their convex portions 23A, 23B, 23C, and 23D. Are arranged with a pitch of ½ pitch. For example, the convex portion 23A of the tip blade 13A arranged in the upper stage in FIG. 7 and the convex portion 23B of the tip blade 13B arranged below the tip blade 13B are arranged with a ½ pitch shift, and further the tip blade 13C therebelow. The convex portion 23C is displaced by 1/2 pitch, and the convex portion 23D of the lowermost end blade 13D is also displaced by 1/2 pitch. FIG. 7 shows only one harness gripping portion 15, but the other harness gripping portion 14 has the same structure.

  As described above, if the harness gripping portions 14 and 15 have a structure in which the four tip blades 13 are stacked and the pitch of the convex portions 23 is shifted in the stacking direction, the adjacent tip blades 13A, 13B, 13C, and 13D are provided. The convex portions 23 </ b> A, 23 </ b> B, 23 </ b> C, and 23 </ b> D can bite the wire harness 4 alternately, and can effectively hold the wire harness 4. Therefore, when the wire harness 4 is lifted, it is possible to prevent a lateral shift (side slip) in the longitudinal direction of the wire harness 4. Moreover, the edge effect by the edge part of convex part 23A, 23B, 23C, 23D (part shown by the black circle ● in FIG. 8) biting into the wire harness 4 is alternated between the adjacent tip blades 13A, 13B, 13C, 13D. It works.

  Moreover, the height and pitch of the convex part 23 of the tip blade 13 are larger than one diameter of the wire 25 which comprises the wire harness 4, as shown in FIG. The wire harness 4 is a bundle of wire rods 25 made of, for example, a fine copper wire having a diameter of about 1.4 mm to 1.7 mm, but the receiving surface of the tip blade 13, the wire harness 4, The contact area of the wire harness 4 becomes large, stable holding is possible, and the effect of preventing the lateral displacement of the wire harness 4 is also obtained. Moreover, by setting it as the said dimension relationship, the cutting | disconnection of the wire 25 by the convex part 23 is suppressed, and the fall of the collection | recovery weight of the wire harness 4 by cutting | disconnection generation | occurrence | production can be avoided.

  Further, as shown in FIG. 5, each of the tip blades 13 and 13 of the first arm 11 and the second arm 12 has a recess 24 of the other tip blade 13 with respect to the projection 23 of the one tip blade 13. The recesses 24 of the one end blade 13 are aligned so as to be the projections 23 of the other end blade 13. By engaging the tip blades 13 and 13 facing each other in this way, the convex portion 23 of one tip blade 13 and the convex portion 23 of the tip blade 13 on the opposite side sandwich the flexible wire harness 4 and crush it. A load point becomes uniform and it becomes possible to hold | maintain this wire harness 4 stably.

  Further, one harness gripping portion 15 is provided with a hooking claw 26 that is inserted into a gap between the vehicle 2 (steering member 29) and the wire harness 4 to hook the wire harness 4. The hooking claw 26 is integrally formed at the tip of the tip blade 13 as a wedge-like claw, and is inserted into a narrow space between the body and other vehicle components and the wire harness 4 crimped to them, so-called a lever. With this principle, the space is expanded and its tip is easily inserted. By providing this hooking claw 26, the wire harness 4 firmly routed on the steering member 29 can be hooked, and the harness gripping portion 14 provided at the distal ends of the first arm 11 and the second arm 12, 15, the wire harness 4 can be securely gripped.

  In addition, one harness gripping portion 14 is provided with a stopper 27 that holds the upper surface of the wire harness 4. The stoppers 27 are provided on the upper and lower surfaces of the harness gripping portions 14 and 15, and are fixed by hexagon bolts 22 and nuts and screws 28 that fix the harness gripping portions 14 and 15 to the first arm 11. The stopper 27 sandwiches the harness grip 15 provided on the other second arm 12 when the harness grips 14 and 15 of the first arm 11 and the second arm 12 are engaged with each other.

  By providing this stopper 27, for example, when performing the operation of removing the wire harness 4 from the inside of the instrument panel 3, even when the tip blade 13 is positioned slightly below the wire harness 4 by a crane operation, the wire harness 4 The upper surface of the stopper 27 is pressed by the lower surface of the stopper 27. Therefore, the wire harness detaching apparatus 1 can be held at an appropriate position, and the center portion of the receiving surface of the tip blade 13 that grips the wire harness 4 can be held in contact with the wire harness 4. Moreover, the complexity of the vertical position fine adjustment of the crane when moving the wire harness removing apparatus 1 to a desired position can be eliminated by this effect. Without this stopper 27, if the hoisting device 5 is lowered too much below the optimum position, the tip blade 13 of the wire harness detaching device 1 will be located below the wire harness 4 and readjusted vertically upward. It takes time and effort.

"Disassembly method of wire harness"
Next, the dismantling method which removes the wire harness 4 wired inside the instrument panel 3 using the wire harness removal apparatus 1 comprised as mentioned above is demonstrated.

  As shown in FIG. 2, the wire harness (main harness) 4 in the instrument panel 3 in front of the front seat of the vehicle is mainly routed along the steering member 29, and the junction box 30 or the like is interposed at the end. And connected to the wire harness 4 of other parts. In particular, right-hand drive vehicles often have a large number of connections at the junction box 30 at the right end and a strong connection force. Therefore, the wire harness removal device 1 is installed at a point on the right side of the central portion of the wire harness 4. Dismantle according to the procedure. When the junction box 30 is at the left end, the wire harness removing device 1 is installed at a point closer to the left than the central portion.

  When the hoisting device 5 is operated and slightly lifted so that the position of the tip blade 13 is aligned with the point where the wire harness removing device 1 is installed, the first frame 9, the second frame 10, the first arm 11, The two arms 12 rotate, and the harness gripping portions 14 and 15 provided at the distal ends of the first arm 11 and the second arm 12 grip the wire harness 4. At that time, when the space between the steering member 29 and the wire harness 4 is narrow, the tip blade 13 is pricked using the hooking claw 26 provided at the tip of the harness gripping portion 15.

  When the crane is rolled up vertically, the force in the vertical direction becomes a force for grasping the wire harness 4, and the wire harness removing device 1 can securely grasp the wire harness 4. Further, when the crane is wound up, a tensile load is applied to a fastening clip, a connector, and the like of the wire harness 4 with respect to the vehicle 2, and these are damaged or pulled out. In the middle, one end of the left end and the right end of the wire harness 4 comes off first, and the lifting is unstable, but there is no lateral shift of the gripping portion by shifting the pitch of the convex portion 23 of the tip blade 13. Stable dismantling can be performed to the end.

"Actions and effects of the embodiment"
As described above, according to the wire harness detaching apparatus 1 of the present embodiment, the first frame 9, the second frame 10, the first arm 11 and the second arm 12 have a rhombus-shaped pantograph structure, so that the crane operation Thus, a large load of several hundred kg when the wire harness detaching apparatus 1 is lifted can be applied to the harness gripping portions 14 and 15 of the first arm 11 and the second arm 12 as a force for gripping the wire harness 4. Therefore, the wire harness 4 can be reliably clamped.

  Moreover, according to the wire harness detaching apparatus 1 of the present embodiment, by stacking a plurality of tip blades 13 in which a plurality of convex portions 23 and concave portions 24 are alternately formed in the stacking direction while shifting the pitch of the convex portions 23. Since the harness gripping portions 14 and 15 are configured, the convex portions 23 of the adjacent tip blades 13 to be stacked alternately bite into the wire harness 4 to effectively hold the wire harness 4 and ensure lateral displacement when lifting. Can be prevented. Thus, in order to lift the wire harness 4 while grasping the wire harness 4 without causing lateral displacement, even if one end of the wire harness 4 is detached from the vehicle body 2, the lifting load is applied to the wire harness 4, and the wire harness 4 is removed from the vehicle body 2 until the end. Can be removed.

  Moreover, according to the wire harness removal apparatus 1 of this Embodiment, since the height and pitch of the convex part 23 of the front-end | tip blade 13 were made larger than one diameter of the wire 25 which comprises the wire harness 4, the front-end | tip The contact area between the blade 13 and the wire harness 4 is increased, so that the wire harness 4 can be stably held and lateral displacement can be prevented. Further, since the wire rod 25 enters the concave portion 24 of the tip blade 13, cutting of the wire rod 25 by the convex portion 23 is avoided.

  Further, according to the wire harness detaching apparatus 1 of the present embodiment, the convex portions 23 and the concave portions 24 of the tip blades 13 and 13 provided at the tip portions of the first arm 11 and the second arm 12 are engaged with each other. By aligning the meshing, the convex portion 23 of one tip blade 13 and the convex portion 23 of the other tip blade 13 alternately crush the flexible wire harness 4, thereby making the load point uniform, The wire harness 4 can be stably held. Moreover, the cutting of the wire harness 4 is suppressed by the engagement of the convex portion 23 and the concave portion 24.

  Further, according to the wire harness detaching apparatus 1 of the present embodiment, since the hook claw 26 is provided at the tip of the harness gripping portion 15 provided in the second arm 12, the body and other vehicle components and the components are crimped to them. By inserting the hooking claw 26 into a narrow space with the wire harness 4 and expanding the space on this principle, the harness gripping portions 14 and 15 can be inserted.

  Moreover, according to the wire harness detaching apparatus 1 of the present embodiment, since the stopper 27 for pressing the upper surface of the wire harness 4 is provided in the harness gripping part 14, the wire harness is in a state where the tip blade 13 is in contact with the wire harness 4. 4 can be held. Further, this can eliminate the troublesome fine adjustment of the position of the hoisting device 5 in the vertical direction.

  Moreover, although the example which removes the wire harness 4 fixed on the steering member 29 was demonstrated in this Embodiment, the wire harness removal apparatus of this Embodiment also with respect to the other harness firmly fixed to the vehicle If 1 is used, a harness can be reliably removed.

[Other embodiments]
Although specific embodiments to which the present invention is applied have been described above, the present invention is not limited to the above-described embodiments, and various modifications can be made.

  In the above-described embodiment, the hooking claw 26 is provided only on one harness gripping part 15, but the hooking claw 26 may be provided also on the other harness gripping part 14.

  Moreover, in this Embodiment, the front-end | tip blade was piled up and the harness holding parts 14 and 15 were comprised, However, The harness holding parts 14 and 15 may each be integral.

It is a top view which shows the state which removes a wire harness from a vehicle with the wire harness removal apparatus of this Embodiment. It is a perspective view which shows the wire harness routed by the instrument panel. It is a front view which shows a wire harness removal apparatus when a 1st arm and a 2nd arm are closed. It is a front view which shows a wire harness removal apparatus when a 1st arm and a 2nd arm are opened. It is a principal part enlarged front view which expands and shows a harness holding part. It is a principal part enlarged front view which expands and shows the harness holding part when a wire harness is grasped. It is a principal part expansion perspective view of a harness holding part. It is a figure which shows typically the arrangement | sequence state of the convex part formed in each front-end | tip blade. It is a figure which shows the relationship between the magnitude | size of the convex part and recessed part which were formed in the harness holding part, and the magnitude | size of the wire material of a wire harness.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 ... Wire harness removal apparatus 2 ... Vehicle 3 ... Instrument panel 4 ... Wire harness 5 ... Winding device 8 ... Hanging part 9 ... 1st frame 10 ... 2nd frame 11 ... 1st arm 12 ... 2nd arm 13 ... Tip Blades 14, 15 ... Harness gripping part 23 ... Convex part 24 ... Concave part 25 ... Wire rod 26 ... Hook claw 27 ... Stopper 29 ... Steering member

Claims (5)

A wire harness removing device for grasping a wire harness arranged in a vehicle and removing the wire harness from the vehicle by being lifted by a hoisting device,
A suspension unit suspended from the hoisting device;
A first frame and a second frame having one end rotatably attached to the lower end of the suspension;
A first arm and a second arm that are pivotally attached to the other end portions of the first frame and the second frame and that can be opened and closed with the intersecting portion as a fulcrum, and the wire harness is sandwiched between the tip portions. Arm,
A harness grip that is provided at least at the tip of the first arm or the second arm, and is formed by stacking at least two or more layers by shifting the pitch of the projection in the stacking direction. And a wire harness removing device. It is a wire harness removal apparatus of Claim 1, Comprising:
The height and pitch of the convex part of the said front-end | tip blade were made larger than the diameter of one wire which comprises a wire harness. The wire harness removal apparatus characterized by the above-mentioned. It is a wire harness removal apparatus of Claim 1 or Claim 2, Comprising:
The tip blades provided at the tip portions of the first arm and the second arm, the concave portion of the other tip blade with respect to the convex portion of one tip blade, and the other tip with respect to the recess portion of one tip blade A wire harness detaching device characterized in that the meshing is aligned so as to be a convex portion of the blade. At least the wire harness detaching device according to any one of claims 1 to 3,
A wire harness detaching apparatus, wherein a hooking claw inserted into a gap between the vehicle and the wire harness is provided on at least one of the first arm and the second arm. At least the wire harness detaching device according to any one of claims 1 to 4,
The harness holding part is provided with a stopper for pressing the upper surface of the wire harness.

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